baber/WOPTO huggingface dataset:
Patent WO-2021233131-A1 (WO)
Title: Multi-frequency dual-polarized antenna and electronic device
Inventor: SHEN YUNPENG
IPC: H01Q5/307
Filed: 2021-05-07
Abstract: Disclosed in the embodiments of the present application are a multi-frequency dual-polarized antenna and an electronic device, which relate to the technical field of antennas and can effectively reduce the complexity of an antenna, reduce the processing cost and significantly reduce the space required for the antenna on the premise of achieving multi-band dual-polarized radiation. According to the specific solution, the antenna comprises a first radiator and a second radiator, which have rotationally symmetrical structures. The first radiator is provided with two feed ports which are 90° rotationally symmetrical with respect to the geometric center of the first radiator. The second radiator is ring-shaped, the first radiator is coplanar with the second radiator, the first radiator is arranged inside the second radiator, and an annular gap is provided between the first radiator and the second radiator.
Patent WO-2021238643-A1 (WO)
Title: Voltage supply circuit, display driving circuit, display apparatus, and display driving method
Inventor: LIANG YUNYUN
IPC: G09G3/36
Filed: 2021-05-11
Abstract: Provided in the present disclosure is a voltage supply circuit, comprising: a power management integrated circuit, a transmission branch, and a voltage reduction branch; a signal output end of the power management integrated circuit, a signal input end of the transmission branch, and a signal input end of the voltage reduction branch are coupled to a first node; a signal output end of the transmission branch and a signal output end of the voltage reduction branch are coupled to a second node; the power management integrated circuit is configured to supply an initial voltage to the first node; the transmission branch is coupled to a control signal end, has connected and disconnected states, and is configured to switch between the connected state and the disconnected state in response to the control of a control signal provided by the control signal end and write the initial voltage at the first node into the second node when in the connected state; and the voltage reduction branch is configured to perform voltage reduction processing on the initial voltage at the first node so as to reduce the voltage and write the reduced voltage into the second node when the transmission branch is in the disconnected state.
Patent WO-2022241657-A1 (WO)
Inventor: SUN JINGYUAN
IPC: G06F16/29
Filed: 2021-05-18
Abstract: Example embodiments of the present disclosure relate to devices, methods, apparatuses and computer readable storage media of satellite positioning measurement. The method comprises: transmitting, at a first device and to a second device serving the first device, a first message for indicating a first configuration of a window for satellite positioning; and communicating with the second device based on the window determined according to the first configuration. In this way, the configuration of the window for satellite positioning can be aligned between the UE and the base station with a low signaling overhead.
Patent WO-2021239057-A1 (WO)
Title: Thin-gauge oriented silicon steel plate having excellent manufacturability, and manufacturing method therefor
Inventor: MA CHANGSONG
IPC: C21D6/00
Filed: 2021-05-27
Abstract: Disclosed in the present invention is a thin-gauge oriented silicon steel plate having excellent manufacturability, which comprises the following chemical elements in percentage by mass: Si: 3.0-4.0%; C: 0.04-0.1%; Mn: 0.05-0.20%; S: 0.003-0.014%; Als: 0.015-0.04%; N: 0.001-0.010%; and at least one of Cr, Mo, V and W elements, which satisfy 0.03%≤Cr+Mo+W+V≤0.2%. Also disclosed in the present invention is a manufacturing method for the thin-gauge oriented silicon steel plate, comprising steps of: steelmaking, hot rolling, normalizing, cold rolling, decarburization-annealing, coating a high temperature isolator, coiling, high temperature annealing, and hot-drawing, levelling and annealing, wherein during coating of the high temperature isolator, the coating amount D is controlled to be 10-22 g/m 2 ; during coiling, the coiling tension F is controlled to be 60-160 N/mm 2 , and the two satisfy 10×D-100<F<10×D+20. The thin-gauge oriented silicon steel plate in the present invention adopts reasonable chemical components and process design, and has excellent manufacturability and electromagnetic properties.
Patent WO-2022252121-A1 (WO)
Inventor: ZHU FEIFEI
IPC: G11C16/30
Filed: 2021-06-01
Abstract: Système de mémoire pouvant comprendre au moins un dispositif de mémoire et un contrôleur de mémoire couplé à l'au moins un dispositif de mémoire. Chaque dispositif de mémoire peut comprendre un réseau de cellules de mémoire et une logique de commande couplée au réseau de cellules de mémoire. Le contrôleur de mémoire et la logique de commande du dispositif de mémoire peuvent être alimentés par une première source d'alimentation présentant un premier seuil de consommation d'énergie prédéterminé. Le réseau de cellules de mémoire du dispositif de mémoire peut être alimenté par une seconde source d'alimentation présentant un second seuil de consommation d'énergie prédéterminé. Le contrôleur de mémoire peut être configuré pour maintenir une première file d'attente d'opérations de mémoire, l'exécution des opérations de mémoire dans la première file d'attente entraînant une consommation d'énergie à partir de la première source d'alimentation ; maintenir une seconde file d'attente d'opérations de mémoire, l'exécution des opérations de mémoire dans la seconde file d'attente entraînant une consommation d'énergie à partir de la seconde source d'alimentation ; déterminer séparément si l'exécution d'opérations de mémoire ultérieures dans les première et seconde files d'attente, respectivement, entraînerait une surcharge des première et seconde sources d'énergie correspondantes ; exécuter, sur la base de la détermination, l'opération de mémoire ultérieure dans la première ou la seconde file d'attente qui n'entraînerait pas la surcharge de la première ou de la seconde source d'alimentation correspondante ; et retarder, sur la base de la détermination, l'opération de mémoire ultérieure dans la première ou la seconde file d'attente qui entraînerait la surcharge de la première ou de la seconde source d'alimentation correspondante.
Patent WO-2021249422-A1 (WO)
Title: 服务器
Inventor: ZHAO SHAN
IPC: G06F1/18
Filed: 2021-06-09
Abstract: 本公开提供一种服务器，其包括：前插机构和后插机构，所述前插机构包括刀片单元，所述后插机构包括主交换单元，所述刀片单元和所述主交换单元通过连接器以正交方式连接。
Patent WO-2022252290-A1 (WO)
Inventor: SHAN CHUANG
IPC: B65D25/38
Filed: 2021-06-16
Abstract: 本公开是关于一种光罩保护盒及光罩传送设备，光罩保护盒包括盒体，盒体内设置有容置空间，盒体的侧部设置有连通容置空间和外部的开口，光罩通过所述开口放置在所述容置空间内；盒盖，盒盖可拆卸地安装于盒体的侧部，以封闭开口。
Patent WO-2021259177-A1 (WO)
Inventor: XIN YU
IPC: H04L27/26
Filed: 2021-06-21
Abstract: The present application discloses a data modulation method and apparatus, a device, and a storage medium. The data modulation method comprises: configuring a modulation mode, a constellation point modulation symbol of the modulation mode being formed by combining a first group of constellation point modulation symbols and a second group of constellation point modulation symbols; and modulating data by using the modulation mode, the data comprising a first data block and a second data block, the first data block being modulated by the first group of constellation point modulation symbols, and the second data block being modulated by the second group of constellation point modulation symbols.
Patent WO-2021259380-A1 (WO)
Title: 一种带侧按功能的编码器开关
Inventor: WU FUXI
IPC: H01H25/06
Filed: 2021-06-29
Abstract: 一种带侧按功能的编码器开关，包括一编码器本体（1），还包括设置于编码器本体（1）背面上的一轻触开关（2），其中，该编码器本体（1）的转轴端部延伸至轻触开关（2）端面上。该带侧按功能的编码器开关，具有编码器功能的同时，也赋予了其侧按轻触开关（2）功能，使得编码器开关功能增多，实用性提高，适用范围更广。
Patent WO-2022077970-A1 (WO)
Inventor: WU SHANSHAN
IPC: G06T11/40
Filed: 2021-07-09
Abstract: L'invention concerne un procédé et un appareil d'ajout d'effets spéciaux, le procédé comportant les étapes consistant: en réponse à une consigne de sélection d'effet spécial de couleur de cheveux, à acquérir une image d'une personne après l'entrée dans un mode de photographie avec effets spéciaux (S110); à déterminer une première zone de cheveux et une zone de visage dans l'image de la personne (S120); sur la base de la première zone de cheveux et de la zone de visage, à déterminer une seconde zone de cheveux (S130); sur la base de la seconde zone de cheveux et l'image de la personne, à effectuer un filtrage guidé pour déterminer une zone à colorer (S140); et à restituer la zone à colorer d'une couleur prédéfinie (S150).
Patent WO-2023283926-A1 (WO)
Inventor: CHEN DONG
IPC: H04N21/643
Filed: 2021-07-16
Abstract: The present disclosure relates to a data transmission method, a data transmission apparatus and a storage medium. The data transmission method is applied to a data sending end, and the method comprises: in response to determining that a byte in which a first type of data is located in an Internet protocol (IP) data packet is successfully sent, determining to send a byte in which a second type of data is located, the degree of importance of the first type of data being greater than that of the second type of data. The present disclosure can reduce the waste of transmission resources and can improve the data transmission efficiency.
Patent WO-2022166124-A1 (WO)
Inventor: ZHOU JIANSHI
IPC: C08G18/75
Filed: 2021-07-21
Abstract: A preparation method and device for a whitewash agent adapting to a color card-base printing material. The preparation method comprises: preparing a long-chain waterborne polyurethane adhesive; preparing a white color paste having a mass percentage concentration of 70-75%; preparing a 15% of polyvinyl alcohol solution; and after the waterborne polyurethane adhesive is dispersed, adding the white color paste, the polyvinyl alcohol solution, a wetting agent, a defoaming agent, a thickening agent, and an antistatic agent, uniformly stirring, filtering, and standing still. The whitewash agent has the advantages such as low preparation cost and a good whitewashing effect, so that the color card-base printing material has a good covering effect and surface printing effect, the production process is simple, the product is easy to coat, the solid content of the product can reach 64-66%, and the whitewash agent is suitable for coating of various colors of PVC or PETG card-base printing materials.
Patent WO-2022262070-A1 (WO)
Inventor: LIU LIN
IPC: B05B13/02
Filed: 2021-07-22
Abstract: The present invention relates to a spraying apparatus for use in a special-shaped workpiece and a spraying method thereof. The spraying apparatus comprises a base, a side-edge support structure, a spraying protection structure, and a workpiece fixing structure, wherein the protection structure comprises a protection and fixing cover; the side-edge support structure comprises a side-edge fixing main plate, a transmission leadscrew embedded and rotating inside the side-edge fixing main plate, a sliding sleeve in sliding connection with the transmission leadscrew and configured to drive the workpiece fixing structure to carry out vertical displacement, and a sliding-rod assembly fixed to the sliding sleeve and configured to drive the workpiece fixing structure to carry out a transverse reciprocating motion. The spraying apparatus can adjust the orientation of a special-shaped workpiece, suction, fix and drive the workpiece to carry out vertical and transverse reciprocating motions, and carry out spraying and drying, thereby solving the problems of an existing spraying apparatus being not convenient and flexible enough to fix and adjust a special-shaped workpiece, and being unable to spray comprehensively.
Patent WO-2022048381-A1 (WO)
Title: Message transmission method and device
Inventor: YANG ZHENXING
IPC: H04L12/46
Filed: 2021-08-04
Abstract: Disclosed in the embodiments of the present application are a message transmission method and device, specifically comprising: before forwarding a message, a first network device pre-obtains identification information used for indicating a tunnel corresponding to forwarding the message. The first network device sends a message comprising the identification information to a second network device by using a first tunnel; upon receiving the message, the second network device, according to the identification information in the message, determines a second tunnel used for forwarding the message to a third network device, and the second network device forwards the message to the third network device by using the second tunnel. It can be seen that, by means of the message transmission method provided in the embodiments of the present application, network devices indicate, by means of sending a message comprising identification information, a tunnel used for forwarding a message, so that when any network device receives the message, same can determine, according to the identification information in the message, the tunnel used for forwarding, thus achieving a network fragmentation function for use in the whole network.
Patent WO-2022078029-A1 (WO)
Title: Memory test method and apparatus, and device and storage medium
Inventor: XU XIAOFENG
IPC: G06F11/22
Filed: 2021-08-05
Abstract: Disclosed are a memory test method and apparatus, and a device and a storage medium. The method comprises: acquiring a central processing unit accessible space of a memory to be tested; acquiring a graphics processing unit accessible space of said memory; and driving a central processing unit to run a test program on the basis of the central processing unit accessible space, so as to access said memory by means of a bus of said memory, wherein when running the test program, the central processing unit controls a graphics processing unit to access said memory by means of the bus of said memory on the basis of the graphics processing unit accessible space.
Patent WO-2023019510-A1 (WO)
Inventor: JIN CHEN
IPC: G06F16/71
Filed: 2021-08-19
Abstract: 本申请涉及数据处理技术领域，公开了一种数据索引方法、装置、设备及存储介质，所述方法包括：对待处理视频数据进行场景分类，获得多个场景片段；获取各场景片段对应的片段信息；根据片段信息生成各场景片段对应的数据帧间标签和场景分类信息，并构建待处理视频数据中各场景片段对应的视频数据索引。从而不需要将待处理视频数据中的场景片段单独截取出来、命名并存储，而是只需要根据各场景片段对应的数据帧间标签和场景分类信息生成对应的视频数据索引，对视频数据索引进行存储即可，根据视频数据索引便可查找到需要使用的场景片段在待处理视频中的位置，节约了视频数据处理的时间，避免了耗费大量的人力物力，进而提高了视频数据处理的效率。
Patent WO-2022088941-A1 (WO)
Inventor: LONG YUQI
IPC: G06F3/0485
Filed: 2021-08-31
Abstract: La présente invention porte sur un procédé et sur un appareil d'ajustement de position de clé virtuelle, sur un dispositif, et sur un support de stockage lisible par ordinateur. Le procédé consiste : à présenter une interface d'ajustement de clé d'une scène virtuelle contenant une clé virtuelle cible ; à la suite d'une opération de mouvement qui est effectuée sur la clé virtuelle cible, à commander la clé virtuelle cible pour qu'elle se déplace dans l'interface d'ajustement de clé de sorte à ajuster la position de présentation de la clé virtuelle cible dans la scène virtuelle, la clé virtuelle cible ayant au moins deux formes de présentation dans la scène virtuelle ; et, lorsque la clé virtuelle cible se déplace vers une zone limite dans l'interface d'ajustement de clé, à présenter des informations d'invite, les informations d'invite étant utilisées pour donner une invite indiquant que l'affichage de la clé virtuelle cible dans la scène virtuelle est anormal lorsque la clé virtuelle cible se trouve dans une forme de présentation cible des deux, ou plus, formes de présentation.
Patent WO-2022057662-A1 (WO)
Title: Server selection method and apparatus
Inventor: ZHU FANGYUAN
IPC: H04W76/10
Filed: 2021-09-06
Abstract: Embodiments of the present application relate to the technical field of wireless communications, and provide a server selection method and apparatus, for selecting an appropriate DNS server for a terminal device, to provide secure and stable network experience. In the method, the terminal device can send first information to a first network element. The terminal device can receive the address of a DNS server sent by the first network element. The DNS server may be determined by the first network element according to first information. On the basis of the above-mentioned solution, the first network element can select, according to a DNS encryption capability supported by the terminal device, a DNS server matching the DNS encryption capability for the terminal device, and the terminal device can initiate a DNS query to the DNS server selected by the first network element. Because the selection of the DNS server does not depend on the manual configuration of a user, and the DNS server is selected by the first network element according to the DNS encryption capability of the terminal device, the DNS server is more applicable to the terminal device, and can provide secure and stable network experience.
Patent WO-2022083392-A1 (WO)
Inventor: WANG JIAMING
IPC: H01Q1/38
Filed: 2021-09-23
Abstract: 本申请提供了一种天线，包括辐射体和馈电装置，其特征在于，应用于天线的耦合馈电或接地，所述馈电装置包括耦合电容板和调谐器件，其中，所述辐射体设置于天线支架的第一表面；所述耦合电容板设置于所述天线支架的第二表面，所述第一表面与所述第二表面相对；所述耦合电容板的整体与所述辐射体的整体间隔设置，形成耦合电容；所述耦合电容板与所述调谐器件电连接，以使所述耦合电容与所述调谐器件形成LC结构，其中，所述LC结构对应的参数满足所述天线在指定频段的通信要求。天线可以通过馈电装置实现在指定频段的通信要求，馈电装置不仅结构简单，易于安装，而且对终端内的其余部件，例如主板、天线等无作用力的损伤，安全性和稳定性更高。
Patent WO-2022068690-A1 (WO)
Inventor: YANG DONG
IPC: H01M10/42
Filed: 2021-09-24
Abstract: 本申请公开了一种电池包及适用于电池包的电动工具和充电器，包括：具有第一材料的壳体；电芯组件，设置在所述壳体内；所述电芯组件包括多个电芯单元；所述电芯单元包括电芯单元正极和电芯单元负极；具有第二材料的电芯支撑件，至少用于支撑所述电芯组件；其中，所述电芯支撑件至少设置在所述电芯组件的两端，至少部分所述电芯支撑件封装所述电芯单元正极和电芯单元负极；所述第一材料不同于所述第二材料。
Patent WO-2022068735-A1 (WO)
Inventor: SANDERSON HUGH ROSS
IPC: G06T15/00
Filed: 2021-09-26
Abstract: Aspects of the disclosure relate to using machine learning for foreground mask estimation. A computing platform may receive a set of images and corresponding ground truth foreground masks. Using the set of images and the corresponding ground truth foreground masks, the computing platform may train the first neural network to distinguish between image foregrounds and backgrounds, which may result in a first set of foreground masks. For each image and based on a corresponding foreground mask, the computing platform may estimate a first background clean plate. Using the set of images, the first background clean plates, and a set of corresponding ground truth mask images, the computing platform may train a second neural network, which may configure the second neural network to output foreground masks based on video input information. The computing platform may deploy, to an implementation computing device, the second neural network.
Patent WO-2022151766-A1 (WO)
Inventor: ZHANG BO
IPC: G06F3/06
Filed: 2021-09-28
Abstract: 一种IO请求流水线处理设备，该设备主要包括：IO状态缓冲器（100）以及流水线控制器（200）；其中，IO状态缓冲器（100）中包括若干元素，用于存储包括由CPU生成的模块调用顺序的上下文信息；流水线控制器（200）用于根据上下文信息进行IO请求的流水线控制。该设备通过硬件模块的设置进行IO处理状态的流水线管理，分担了原有CPU软件控制过程巨大的工作量，也降低对CPU设计的要求，同时通过IO状态缓冲器中记录的模块调用顺序实现流水线控制器的处理逻辑的触发，可以降低实现功耗，提升实现效率。
Patent WO-2023050259-A1 (WO)
Inventor: LI KAI
IPC: C08L23/08
Filed: 2021-09-30
Abstract: 一种薄膜及其制备方法，所述的薄膜由如下重量份原材料制备而成：基材35-48％，表面改性的碳酸钙填料49-51％，其余的为添加剂；所述基材是重量比为1∶(4～9)∶(1～4)的EVA、LDPE和LLDPE，所述碳酸钙包括粒径范围为2000-4000目、4000-6000目、6000-8000目和1-100nm的四种碳酸钙颗粒，所述碳酸钙经聚乙二醇改性处理；所述的添加剂为抗氧剂、聚乙烯蜡、防霉母粒和香精，制备过程简单，成本低，适合高拉伸速率下的流延成膜。
Patent WO-2023279568-A1 (WO)
Title: 一种蓄能传动机构及蓄能轮
Inventor: CHEN MENGJING
IPC: A63H17/267
Filed: 2021-10-15
Abstract: 一种蓄能传动机构及蓄能轮，其中，蓄能传动机构，集成于一转动件上，用于传动转动件转动，蓄能传动机构包括中轴、弹性件、传动罩、飞轮和飞轮座，弹性件卷绕于中轴上，且位于传动罩之内；弹性件的一端固定连接于中轴，另一端固定连接于传动罩；当传动罩转动配合于中轴，联动弹性件收紧以蓄能；传动罩与飞轮的外环或内环固定连接，飞轮的内环或外环与飞轮座固定连接，飞轮座安装于转动件上；转动件、传动罩、飞轮座分别转动安装于中轴上。本装置利用传动罩转动联动弹性件收紧以蓄能，蓄能后利用弹性件收紧后的复位联动传动罩反向转动，通过飞轮联动转动件转动，实现转动件蓄能传动，且结构简单。
Patent WO-2022116769-A1 (WO)
Inventor: NING KEJUN
IPC: H04N5/217
Filed: 2021-11-03
Abstract: A camera module and an unmanned vehicle. The camera module comprises: a camera (10); a mounting base (20), the camera (10) being mounted on the mounting base (20); a light-transmitting protective cover (30) fitted over the camera (10) and movably provided on the mounting base (20); and a driving mechanism (40) located on an inner side of the light-transmitting protective cover (30) and used for driving the light-transmitting protective cover (30) to vibrate with respect to the camera (10) and the mounting base (20).
Patent WO-2022127456-A1 (WO)
Inventor: WANG XUN
IPC: G06F9/455
Filed: 2021-11-11
Abstract: Embodiments of the present application relate to the technical field of computers, and disclosed therein are a virtualized resource configuration method, apparatus and device, and a storage medium. In the embodiments of the present application, the virtualized resource configuration method comprises: acquiring historical use information of a user using a corresponding virtual machine, the virtual machine being an exclusive virtual machine of the user; predicting, according to the historical use information, a usage policy for the user to subsequently use the virtual machine; and in a usage cycle corresponding to the usage policy and according to the usage policy, dynamically configuring a virtualized resource occupied by the virtual machine.
Patent WO-2022134963-A1 (WO)
Inventor: QIN JIE
IPC: F04D25/08
Filed: 2021-11-18
Abstract: Provided in the present application are a fan assembly and a vacuum cleaner, the fan assembly comprising: a rotating shaft; a driving component which is disposed on the rotating shaft; a first impeller which is disposed on the rotating shaft and located on one side of the driving component; a diffuser which is disposed on the other side of the driving component; and a second impeller which is disposed on the rotating shaft and located between the driving component and the diffuser, the second impeller being configured to supply air from the first impeller to the diffuser. According to the fan assembly provided in the present application, the first impeller and the second impeller are arranged on two sides of the driving component, which to an extremely large extent improves the stability of the driving component when same drives the rotating shaft to rotate. Moreover, the operating stability of the driving component is also guaranteed, and the fan assembly has the advantages of high air supply efficiency and a small radial size.
Patent WO-2023092395-A1 (WO)
Title: 清洁装置
Inventor: Yi Wangbin
IPC: B08B5/02
Filed: 2021-11-25
Abstract: 一种清洁装置(100)，用于清洁工件的孔内污染物，清洁装置(100)包括机座(10)、定位组件(20)及清洁组件(30)，定位组件(20)和清洁组件(30)设置于机座(10)上。定位组件(20)包括治具(2)及侧推机构(3)，侧推机构(3)设置于治具(2)的侧方，侧推机构(3)用于推动工件至治具(2)的限位区域(211)，治具(2)用于固定限位区域(211)内的工件。清洁组件(30)包括排气机构(32)及吸气机构(31)，排气机构(32)用于朝具有污染物的孔内吹干净气体，干净气体吹脱污染物以成为载污气体，吸气机构(31)用于吸收载污气体。清洁装置(100)可以实现对工件的孔内的污染物的高效清洁，同时提高工件的外观良率。
Patent WO-2023082344-A1 (WO)
Inventor: CHENG XUEYIN
IPC: G09F9/30
Filed: 2021-11-25
Abstract: 一种显示面板（1000）和电子装置；显示面板（1000）的支撑板（100）包括多层层叠设置的支撑构件（11,12），第一支撑构件（11）在对应第一弯折区（BD2）的区域镂空，第一支撑构件（11）的压延方向（RD1）垂直于第二弯折区（BD1）的弯折轴线（A-A '），第二支撑构件（12）在对应第二弯折区（BD1）的区域镂空，第二支撑构件（12）的压延方向（RD2）垂直于第一弯折区（BD2）的弯折轴线（B-B '），以缓解现有金属支撑件存在断裂风险的问题。
Patent WO-2023092526-A1 (WO)
Inventor: LI HAITAO
IPC: H04W52/02
Filed: 2021-11-29
Abstract: La présente demande concerne un procédé de radiorecherche, un dispositif terminal, un dispositif de réseau, une puce, un support de stockage lisible par ordinateur, un produit-programme d'ordinateur et un programme d'ordinateur. Le procédé comprend : la réception, par un dispositif terminal, de premières informations, les premières informations étant un signal de réveil de faible puissance ; et la surveillance, par le dispositif terminal, d'un message de radiorecherche dans une fenêtre de radiorecherche, un premier instant de début de la fenêtre de radiorecherche est déterminé sur la base d'un instant de réception des premières informations, et d'un intervalle de réveil.
Patent WO-2022127704-A1 (WO)
Inventor: LV HUA
IPC: C07D265/06
Filed: 2021-12-10
Abstract: 本发明公开了羧基环内酸酐的制备方法及制备产物。式(II)化合物的制备方法，该方法包括将式(I)的化合物与环化试剂反应以生成式(II)化合物和酸，并且使用环氧化合物作为除酸剂的步骤。本发明是一个新的羧基环内酸酐合成方法，成本低廉，对实验所需试剂、场所及设备要求低，条件温和，底物适用范围广，官能团耐受度高，合成路线可回收部分溶剂与其他高附加值副产品，废液排放少，易放大，具有极高的工业及学术价值，可极大推动聚氨基酸、聚羟基酸(聚酯)、聚巯基酸(聚硫酯)等产品的迅速大规模生产及应用。